Treasury Shares, Etc.
| Concept | As at 2024-09-30 | As at 2024-09-30 | As at 2024-09-30 | 
|---|---|---|---|
| Treasury shares, etc. | |||
| Treasury shares, etc. | |||
| Name of shareholder | 
                                                日本理化学薬品株式会社
                                                
                                             | — | 
                                                杏林製薬株式会社
                                                
                                             | 
| Address of shareholder | 
                                                東京都中央区日本橋本町4丁目2番2号
                                                
                                             | — | 
                                                東京都千代田区大手町一丁目3番7号
                                                
                                             | 
| Number of shares held in own name | 
                                                23,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                6,485,200
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                6,462,200
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Number of shares held in others' names | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Total number of shares held | 
                                                23,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                6,485,200
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                6,462,200
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Shareholding ratio | 
                                                0.0004
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.1004
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.1000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             |